20.500.12556/RUL-139356 Razvoj merilnega sistema za spremljanje obrabe orodja Development of a toll-wear monitoring system Pri struženju je nezaznana obraba rezilnega roba pogosto vzrok izdelovanja kosov, ki ne dosegajo geometrijskih in površinskih zahtev. Rešitev tega problema je mogoča v sistemu za spremljanje obrabe rezilnega roba. Ta na tržišču še ne obstaja v nizkocenovnem rangu. Cilj naloge je izdelati merilni sistem za merjenje vibracij na stružnem nožu in z njim definirati obrabo. V ta namen smo sestavili merilni sistem, zasnovan na mikrokrmilniku Arduino Uno in PVDF-merilnem lističu, ter napisali kodo za procesiranje signala v programskem jeziku Python. Izmerili smo vibracije med živjenjsko dobo rezilne ploščice pri različnih materialih in ovrednotili rezultate. Unknown tool wear in a turning process is frequently the cause of production of parts with inadequate geometrical and surface finish demands. This problem can be solved by introducing a system for tool wear detection. In the lower price range, there is currently no such system avalible on the market. The goal of this assignment is to build a system for measuring vibrations of the cutting tool and to find its correlation to the wear impacting the tool. For this purpose we have built a measuring system based on the Arduino Uno microcontroller and the PVDF strain gauge and wrote a code for signal processing in the programming language Python. We have measured vibrations during the tool's lifespan while turnning different materials and evaluated the results. struženje obraba odrezovalnega orodja merilni sistem identifikacija obrabe dinamika turning cutting tool wear measuring system wear identification dynamics true false false [P. Hafnar] Slovenski jezik Angleški jezik Zaključna naloga 2022-09-01 08:31:18 2022-09-01 08:31:20 2022-09-16 08:33:23 0000-00-00 00:00:00 2022 0 Ljubljana 0 XVII, 52 f. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 1970-01-01 621.941.025:539.375.6(043.2) 243921 121588739 17417.pdf 17417.pdf 1 3A1C22CBA67BD09964A0ED0C4A12EA4B 27da6f1b0fe960a85b3d7102b6d12aa8405880fe2d36e0f4f7771151f3a183cd a70e8fc1-29bf-11ed-92af-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=159898 Fakulteta za strojništvo 0 0 0